A firefighter attempts to extinguish a bushfire in Casthereagh, near Sydney September 10, 2013. More than 550 firefighters are working on several bush fires across New South Wales (NSW) that have left... more&nbsp

A firefighter attempts to extinguish a bushfire in Casthereagh, near Sydney September 10, 2013. More than 550 firefighters are working on several bush fires across New South Wales (NSW) that have left one house destroyed and six firefighters injured, according to the NSW Rural Fire Services. REUTERS/Daniel Munoz (AUSTRALIA - Tags: DISASTER) less&nbsp